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Finding the Fourth Proportional to 8,126.80, 12,190.20 and 6,053.20

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Solution

The fourth proportional to 8,126.80, 12,190.20 and 6,053.20 is: 9,079.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,126.80 : 12,190.20 = 6,053.20 : x
  2. Step 2: Convert to fraction form
    8,126.80/12,190.20 = 6,053.20/x
  3. Step 3: Cross multiply
    8,126.80x = 12,190.20 × 6,053.20
  4. Step 4: Simplify right side
    8,126.80x = 73,789,718.64
  5. Step 5: Solve for x
    x = 73,789,718.64/8,126.80
  6. Step 6: Final answer
    x = 9,079.80

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.